No law about not carrying in a bank in WA. One of my banks has a BIG sign saying no hoodies, ball caps, or sunglasses, but welcome my 1911. Although I've heard some banks that prohibit guns at the local level. You are not breaking any law, but if they ask you to leave you have to go or be in violation of trespassing. My banks in my area (Olympia) Wells Fargo, and Chase have no issue with my carry. Check the stickies at the top for prohibited areas. Courts, bars (over 21 only areas) are the main places. Getting a CPL in WA is very easy. Allows you to get in your car without unloading. WA for the most part is pretty gun friendly, but just like anywhere you can find the antis.